(Iowa)
Lacey-Keosauqua State Park is located southwest of Keosauqua, Iowa, United States. The park is located along the Des Moines River in Van Buren County. First dedicated in 1921, it is the largest state park in size in Iowa. In 1990, three areas were named nationally recognized historic districts and listed on the National Register of Historic Places. (Ref: https://en.wikipedia.org/wiki/Lacey-Keosauqua_State_Park)